Description

With the getyx() macro, the cursor position of the window is placed
in the two integer variables y and x.

With the getparyx() macro, if win is a subwindow, the beginning coordinates
of the subwindow relative to the parent window are placed into two
integer variables, y and x. Otherwise, -1 is placed into y and x.

Like getyx(), the getbegyx() and getmaxyx() macros store the current beginning
coordinates and size of the specified window.

Return Values

The return values of these macros are undefined (that is, they should
not be used as the right-hand side of assignment statements).